488 GENTIANACEAE 
short lobes; calyx 4- or 5-parted. Anthers twisting spirally and extend- 
ing beyond the throat of the tube. Low branching annuals with purple, 
white or yellow flowers. 
l. E. centaurium, (L.) Pers. (Fig. 5, pl. 121.) Crnraury. (Cen- 
taurium umbellatum, Gilib.) Stem upright, branching, 6 to 12 in. high; 
leaves oblong, obtuse at apex, narrowed at base, at the base of the stem 
the leaves form a rosette. Clusters of flowers form a nearly flat-toppea 
compound cluster of purple flowers which have very short flower stems. 
Waste grounds. June-Sept. 
2. E. spicata, (L.) Pers. Sprkep CentTaury. (Centauria spicata, 
Fernald.) Resembles No. 1, but flowers are arranged in slender spikes. 
Coast of Nantucket. May-Sept. 
3. E. pulchella, Fries. (Fig. 6, pl. 121.) BRrancuine CENTAURY. 
(E#. ramossissima, Pers. Centauria, Druce.) Low, much branched, 2 to 
6 in. high; leaves mostly oval, not in a rosette at base; stem widely 
forking above, the flowers forming a diffuse cluster, all the flowers on 
flower stems. Fields and wet places. Southern part of our area. June- 
Sept. 
2. SABBATIA, Adams 
Slender stemmed annual or biennial herbs, with diffusely clustered, 
showy flowers and with opposite or whorled leaves. Corolla 4- to 
12-parted, as is also the calyx; stamens 4 to 12, inserted in the tube of 
the corolla, which is shallow, the lobes expanding to a wheel-shaped 
flower. Ovary l-celled; style slender, 2-cleft. 
Calyx and corolla, each 8- to xe-parted . . © . « « se « |S. doadecanuee 
Calyx and corolla 4- to 5-parted. 
Branches opposite. 
Plowers: white. -.2-n. =»: .@- he (Spee ee eh Pe len cn OS eee 
Blowers; pinks» 6) 10) 6-26 te oem tee ee) pc, re ee eo 
Branches alternate. 
Flowers: “white: » 5: "re. is, V8 is, ast Meo Dae cat) eee eS 
Fiowers pink, center yellow) = 9.9 > a 3 3 = CoReemesbenaeee 
1. §. lanceolata, (Walt.) T: and G. LaAncr-LeEAvep Sappatra. Stem 
simple, slender, 2 to 3 ft. high, with opposite branches at top bearing 
diffuse cluster of white 5-rayed flowers. Leaves 3-nerved, egg-shaped, the 
upper sharp-pointed, Wet pine barrens, southern part of our area. May- 
Sept. 
2. §. angularis, (L.) Pursh. (Fig. 1, pl. 121.) Rose Pink. Stems 
1 to 23 ft. high, somewhat 4-winged; leaves opposite, broadly egg-shaped, 
somewhat heart-shaped at base, apex tapering, 5-nerved. Flowers in loose 
clusters above, corolla of 5 radiating lobes which are rounded at apex 
and are twice as long as the linear calyx lobes. Flowers pink, with a 
greenish or yellowish star in the center, on long slender flower stems. 
Thickets. Rich soil. Southern part of our area. July-Aug. 
3. §. stellaris, Pursh. (Fig. 2, pl. 121.) Marsu Pink. Stem 3 to 
2 ft. high, slightly angular or round; branches alternate; leaves opposite, 
lance-shaped or linear. Flowers pink or white with a yellowish starry 
center. Calyx 5-pointed, the points linear, half as long as the lobes of the 
corolla. Corolla 5-lobed, the lobes spreading and rounded at apex. Salt 
marshes. July-Sept. 
4. §. gracilis, (Michx.) Salisb. (Fig. 3, pl. 121.) StenpeR MarsH 
